Finding the Fourth Proportional to 111,031.50, 153,223.50 and 60,730.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,031.50 : 153,223.50 = 60,730.50 : x
2. Step 2: Convert to fraction form
   111,031.50/153,223.50 = 60,730.50/x
3. Step 3: Cross multiply
   111,031.50x = 153,223.50 × 60,730.50
4. Step 4: Simplify right side
   111,031.50x = 9,305,339,766.75
5. Step 5: Solve for x
   x = 9,305,339,766.75/111,031.50
6. Step 6: Final answer
   x = 83,808.11